Method isEnumTy

include/ast/component/type.h:298–300

    return std::holds_alternative<FlagsTy>(Type);
  }
  bool isEnumTy() const noexcept {
    return std::holds_alternative<EnumTy>(Type);
  }
  bool isOptionTy() const noexcept {
    return std::holds_alternative<OptionTy>(Type);
  }